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(No Model.) 2 Sheets-Sheet 1 E. IlIGrRAHAM.4 CLUTCH AND BRAKE MBCHANISMFOR LOOMS. No. 592,731.

Patented 0011.26, 1897.

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(No Model.) 2 Shets-Sheet 2.

E. INGRAHAM.

CLUTCH AND BRAKE MBGHANISM POR Looms.v N0..592,'731. Patented Oct. 26,1897.

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UNITED 'STATES PATENT rricn..

EDMUND INGRAHAM, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TOTHE FAIRMOUNT MACHINE COMPANY, OF SAME PLACE.

"CLUTCH-AND-BRAKE' MECHANISM FOR LOOIVIS.l

SPECIFICATION forming part of Letters Y:Patent No. 592,731, datedOctober 26,-/ 1897. i Application niet May 8,1896. serai 110,590,730.cromati.)

To @ZZ whom t mayomtcern:

Be it known AthatI, EDMUND INGRAHAM, acitizen of the United States,residing in Phila-L delphia, Pennsylvania, have invented certainImprovements inOlutch-and-Brake Mechanism for Looms,of which thefollowing is a specification. V

The object of my invention is to provide an efficient form' of clutchandbrake vfor looms whereby the loom can be quickly Vstopped whennecessary, the mechanism being such that the brake can be removedwithout throwing the/'clutch into action in order to permit the loom tobe readily turned backward by hand for the removal of defective picks orfor other purposes. i

In the accompanying drawings, Figure 1 is a side view of sufficient of aloom to illustrate my improved clutch and brake therefor. Fig. 2 is aplan view of the same. Fig. 3 is a front View with the loom-frame shownin section, and Fig. 4 -is a section through the clutch.

One of the side frames of the loom is represented at 1, and to suitablebearings in said side frame is adapted the driving-shaft 2 of the loom,said shaft having mounted upon its outer end, so as to turn freelythereon, apulley 3 for receiving the driving-belt. This pulley hassecured to it a Haring `clutch-rim 4, having its outer ilat face coveredwith' leather or other equivalent frictional material 5, this face ofthe clutch-rim being op-V posed to the similarly-covered face of a diskor collar 6, which is keyed or otherwise rigidly secured to the shaft 2.

On the hub of the disk 6 is adapted to slidel a grooved collar 7,engaging with the inwardly-extending arms of levers 8, which are hung bymeans of bolts 9 to slotted brackets 10, projecting from the peripheryof the disk 6.

The outwardly-extending arms of the levers 8 overhang the clutch-rim 4and are shod with leather'or other y frictional material, so that whenthe grooved collar 7 is moved away from the disk i6 it will effectmovement of the levers 8 in the direction of the arrows, Fig. 3, so asto press the outer arms of the same firmly against the clutch-rim 4 andat disk G, so that there is a double frictional hold,'the 'iirst being adirect frictional contact between the adjoining faces of the clutch rimand disk and the second a frictiona'l contactbetween the clutch-[rim andthe shoes ofthe levers 8. j.

Secured to orforming partof the grooved collar 7 kis another groovedcollar 11, with which engage pinscarried by a lever 12, hung to a stud13Ona bracket 14, projecting from the side frame of the loom,1said leverhaving a slot lbfor receivinga pin 16, carried bythe s hort arm ofaflever 17, hung to another'stud 18 on the-bracket 14, the long arm ofsaid lever 17 beingA forked vso as vto embrace theusuallspring'shipper-arm 1S',

whichvengages with/a notched .bracket 19 on the lobm-frame and is undercontrol of the usual knock-off lever 20, the latter being actuated bythe ordinary shuttle and weft stop-motions of the loom in order to pressthe shipper-arm 18 out of its retaining-notch in the bracket 19 whenevera defect in the operation of the loom requires a stoppage of the same.The shipper-arm 18"is also embraced by the forked lower end of the longYarm of a bell-crank lever 21,'which is hung to a lug on the bracket 19and has its short armconnected by a rod 22 to'one arm of a lever 23,'the latter being pivoted upon a stud 24, projecting from the bracket 14.The

other armof the lever 23 is curved concenmaterial.

.The bracket 19 has two notches 27 and 28, the latter being locatedoutwardly beyond the -notch 27, and when the loomris running theshipper-arm 18 rests in the notch 27, the effect of which is to releasethe brake-shoe 26 from contact with the periphery of the brakedisk 25and to draw the grooved collar 7 inwardly on the hub of the disk 6, soas topress the shoes of the levers S onto the clutch-rim 4 and thelatter into contact with the clutchdisk 6, thereby clutching thedriving-pulley 3 of the shaft 2. When, however, the knockoff bar 20isoperated, it pushes the shipperarm 18' out of the notch 27, and thespring of the arm thereupon immediately carries it to IOO the outer endof the slot in the bracket 19, thus imparting such movement to thelevers 17, l2, and 23 as to release the clutch-rim i from the action ofthe levers S and apply the brake-shoe 2G firmly to the periphery of thebrake-disk 25, thereby quickly stopping the loom.

If it is desired to turn the loom by hand for any purpose, theshipper-arm 1S is drawn'inward until it rests in the outer notch 28 ofthe bracket 19, this movement being sufficient to withdraw thebrake-shoe 2G from contact with the brake-disk 25, but not being enoughto cause action of the levers 8 upon the clutchrim 4. Hence the loomwill be free from the iniiuence of the brake,but will not be clutched tothe driving-pulley, the latter operation requiring the movement of theshipper-arm 1S to its i'ull inward position, where it rests in the innernotch 27 of the bracket 19.

If the driving-pulley occupies a fixed longitudinal position on theshaft 2, the clutching operation may be effected by the simpleengagement of the clutch-rim of the pulley and the clutch-levers S, butit is preferable in alll eases to bring into action the additionalclutching-surface presented by the disk (3.

Having thus described my invention, I clailn and desire to secure byLetters Patent- 1. The combination of the driving-shaft having abrake-disk and a clutch-disk thereon, the driving-pulley, a clutch forconnecting the same to the disk, lever mechanism for operating saidclutch, a shipper-ar1n engaging with said lever mechanism, a brake-leverindependent of the clutch-lever 1nechanism,and swinging in a plane atright angles thereto, and lever-and-rod mechanism interposed betweensaid brake-lever and the shipper-arm, whereby the brake-lever is causedto move in a plane at right angles to the movement of the shipper-arm,substantially as specified.

2. The combination of the clutching meehanism, the braking mechanism,the shipperarm, interposed connections whereby the brake-lever isreleased in advance of the tightening of the clutch, and a retainer forthe shipper-arm having two notches, one of which receives saidshipper-arm when the latter is adjusted so as to release the brake, theother notch receiving the arm when lthe same is adjusted so as totighten the clutch, substantially as specified.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

EDMUN D INGRAHAML Witnesses:

F. E. BEcI-rroLD, Jos. H. KLEIN.

